Initially scheduled for this Wednesday but now postponed for a week, it’s coming sooner or later.

Once the former special counsel repeats that Justice Department policy kept him from laying out federal criminal charges against a sitting president, will you agree that it is now up to Congress to hold the president responsible?

After all, we know of more than two dozen meetings between Trump campaign figures and Russians. Mueller detailed how the president tried to fire the special counsel and made several other efforts to derail the investigation.

Based on his May press conference, Mueller is almost certain to say he believes “the constitution requires a process other than the criminal justice system to formally accuse a sitting president of wrongdoing.”

As far he is concerned, the whole Russia matter is “breathless conspiracy theorizing.” McConnell is in such a rush, he recently announced “case closed” because the special counsel did not indict Trump.

It has the power to break apart Trump’s echo chamber of blindly loyal support.

A Monmouth University poll in May found 49 percent of adults saying Russia interference in the 2016 election caused “a lot” of damage to “American democracy.”

The same poll found 44 percent saying they “definitely” believe Russia interfered, while an additional 29 percent said Moscow “probably” did so.

Now, with a delay in Mueller’s testimony, there will be renewed pressure from the administration for Mueller to never testify. The Justice Department is already instructing some of Mueller’s top aides not to do so.